21804761

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^3$

素因数の和:102

約数の個数: 24

約数和(自身を含む): 26672160

約数和(自身を除く): 4867399

約数列:

[1, 11, 17, 19, 187, 209, 289, 323, 361, 3179, 3553, 3971, 5491, 6137, 6859, 60401, 67507, 75449, 104329, 116603, 1147619, 1282633, 1982251, 21804761]

約数ペア:

[(1, 21804761), (11, 1982251), (17, 1282633), (19, 1147619), (187, 116603), (209, 104329), (289, 75449), (323, 67507), (361, 60401), (3179, 6859), (3553, 6137), (3971, 5491)]